PK, known as PSI in Super Smash Bros. Ultimate, is an attack type in the Super Smash Bros. series that encompasses attacks from Earthbound characters using their PSI powers.
PK attacks are boosted by PK Attack stickers in Super Smash Bros. Brawl's The Subspace Emissary and the Spirit skill or trait PSI Attack ↑ as well as certain Spirit Battle conditions in Super Smash Bros. Ultimate. PK attacks are resisted by the Support Spirit skill PSI Resist ↑ in Super Smash Bros. Ultimate.
PK (type) attacks
By characters
| Character | Move | Games |
|---|---|---|
| Lucas | Dash attack |   
|
| Forward tilt | ||
| Up tilt | ||
| Up smash | ||
| Down smash | ||
| Neutral aerial | ||
| Forward aerial (sweetspot) | ||
| Back aerial | ||
| Down aerial | ||
| PK Freeze | ||
| PK Fire | ||
| PK Thunder | ||
| PSI Magnet | ||
| PK Starstorm |
| |
| Ness | Dash attack |
|
| Forward aerial | ||
| Back aerial | ||
| Down throw | ||
| PK Flash | ||
| PK Fire | ||
| PK Thunder | ||
| Up tilt |
| |
| Neutral aerial | ||
| Up aerial | ||
| Down aerial | ||
| Pummel | ||
| PSI Magnet | ||
| Rising PK Flash (custom PK Flash) |
| |
| PK Freeze (custom PK Flash) | ||
| PK Bonfire (custom PK Fire) | ||
| PK Fire Burst (custom PK Fire) | ||
| Lasting PK Thunder (custom PK Thunder) | ||
| Rolling PK Thunder (custom PK Thunder) | ||
| PK Starstorm |
|
By items
| Item | Attack | Games |
|---|---|---|
| Assist Trophies | Starman: PK Beam γ and PK Beam Ω |
|
| Poké Ball Pokémon | Ditto: Transform (if the summoner possesses PSI attacks) |
|
By enemies
| Enemy | Attack | Games |
|---|---|---|
| Starman | PK Beam γ and PK Beam Ω | 
|
| List of attack types | |
|---|---|
| Individual types | Bite  • Energy  • Explosive  • Head  • Magic  • Pikmin  • PK  • Spin  • Tail  • Typeless  • Throwing  • Water 
|
| Type groups | Arm (Elbow  • Hand  ) Body (Body  • Butt  ) Leg (Foot  • Knee  ) Weapon (Bat  • Hammer  • Sacred  • Sword  • Parasol  • Weapon  • Whip  )
|